Window sash operator



Feb. 6, 1945. E. R. TARVIN WINDOW SASH OPERATOR Fi'led May'9, 1941 5 Sheets-Sheet l INVEN'POR.

BY: yenel lrwzn Feb. 6, 1945. E. R. TARVIN WINDOW SASH OPERATOR Filed May 9, 1941 3 Sheets-Sheet 2 Feb. 6, 1945. R TARwN 2,368,622

WINDOW SA'SB OPERATOR Filed May 9, 1941 3 Sheets-Sheet 3 INVENTOR.

7a/rI/07/ Patented Feb. 6, 1945 WINDOW SASH OPERATOR Emgmie R. Tarvin, Sterling, Ill., asslgnor to Frantz Manufacturing- Company, Sterling, 111.,

' acorporation of Illinois Application Ma-y 9, 1941, Serial No. 392,680

' 2 Claims. (ones-105) This invention relatesto sash operators of the type used particularly on storm windows and window screens, wherein the window screen is adapted to swing pivotally to an open position, or to a closed position, and wherein the sash operator is formed as a toggle joint having one end of the toggle fastenedvto the storm sash, and the other end formed to a stationary support such as the window frame.

Among the objects of the present invention are to provide a sash operator of the foregoing type, wherein the pivotal pin between the two members forming the joint for the toggle is provided with a handle tov facilitate the opening and closingmovement of the pivotally mounted window sash, so that it is not necessaryior a person to grasp either one of the members forming the toggle joint with the consequent danger of pinching his hand when the toggle joint is moved either to open or closed position; to provide a window sash operator of the toggle joint type wherein means is provided at the pivotal joint of the two members forming the toggle, which will positively lock the window sash in open position when the two toggle members are moved into parallel or xtreme open position. g

Yet another object of the invention resides in providing a simple type of tension means for adjustably holding the two members of the toggle joint in various positions of relative adjustment, whereby correspondingly to hold the window sash. in such adjusted position, and whereby likewise to hold the window sash in closed position; to

provide a sash operator with the foregoing characteristics which is adapted to fold compactly into closed position and, when in such closed position, may swing freely above or below its point of pivotal connection with the window sash whereby to facilitate and permit the attachment of the toggle joint actuator to any portion of the window sash, and to insure itsoperability in such position when the window sash is closed; to provide an improved construction of toggle joint type of actuator, wherein each lever is provided on adjacent pivotal interconnected ends with an integral nose or lug adapted, when the levers are in straight-line or open position, to lock with an adjacent portion of the other lever, whereby to maintain the toggle joint and the window sash locked rigidly in open position, and

thereby eliminate the necessity of having the toggle members swung to and over the center position in order to stay locked; to provide an economical, simple, and easily detachable and attachable means for connecting one of the toggle -65 modifiedtype of construction, Whereint'h 55mg operator-std the window frame; to provide asim ple type of toggle joint connection which will frictionally maintain the two members iormingthe toggle joint in any adjusted position; to provide a toggle joint type of sash operator formed of sheet metal stampings, which 'stampings when assembled providea rugged, compact, econbnrical and efiicientlyoperable-type ofeasily oper able device; to provide thesewand other objects of the invention as will be apparent from; a perusal of the following specification when taken in. connection with the drawings; which. are-- Figure l is a, perspective 'view'of a window sash provided with an operator or brace at each side thereof, embodying the principles of the 111-.

ven-tion, and showing the sash in open post Figure 2 is a similar viewin, enlarged vertical section, illustrating the action of the brace or operator, in dotted. lines, when it is desired to swing the sash backinto closedposition;

Figure 3 is a similar sectionalfview; showing certain portions broken :away, and showing operator in its vertical position in. full lines, and

showing it moveddow-ninto horizontal'position indottedlines;

Figure 4 is a similar view showing the or brace moved out into its, blocking or' position;, f

Figure 5 is a fragmentary view, one. larger scale, looking directly at the window irameand one side of the sash towhich the operator-or brace is applied, thus showingthe latterin-cedle view, so to speak, instead; of in side elevation: Figure 6 is an exploded perspective View showing the parts, shownin Eigure 5,,inseparated condition, and showing theip rts a smaller scale than that by which they are in Figure5 of the drawings; c

Figure 7 is a side elevation ,on a larger'scale, oi one ofthe bracket plates that are secured to the opposite sides of the window frame;' show i'n-g the adjacent linls with its pivot studs-in sition thereon;

Figure 8 is a vertical section on line F-Jin' Figure 'l of the drawings;

Figure 9 is a perspectivelview of one at the braces or operators inextended position;

Figure 10 is avertioals'ecti'on on'alarger sc'ale, on line iii-4 u m Figure 9 of the drawings; F igure 11 is avertical'secti'on line I I- -H 1n rfigure 9 of the drawings, on asomewhatl arger scQ Qand Q Figures 12, 13, i4, iii-wand 16 are views of e at their inner ends to form a toggle joint and,

by raising the link members to the position shown -in dotted lines in Figure 2, the window sash will be drawn toward the window frame, or to a closed position, whereas by pushing down on the toggle link member to the full length, shown by solid lines in Figure 2, the window sash will be moved outwardly to open position.

Referring now to the details of construction of the sash operator, it will be seen that it comprises two identical links I and 2, preferably formed of sheet-metal stampings. In Figure 6 these identical' links are shown as turned end for end in order to form the toggle joint at the middle of thebrace or operator. The outer end of link 2 is provided with a rounded ear-like portion 4 centrally perforated and adapted to slip over and pivotally swing on a stud pivotally fixed .to a bracket plate 16, and it is attached to the sash 60f thewindow. construction.

.Inaddition, the handle 1 is provided with a threaded shank 8, which is adapted to be inserted through holes .9 and Ill-in the opposite ends of the links I and 2. In addition, this threaded shank also passes through a central aperture of a steel spring washer II and likewise througha threaded nut l2 which is provided to hold the toggle joint-in operative position. Each of the i and 2 preferably has a lateral flange or lug 13 .on one edge thereof, which flange is adapted to engage the unfianged or lugless edge of the other. link when the links are folded to-' gether, andthus these'fianges serve to keep the two links .parallel in such" closed position, as shown in Figures 3 to 6 of the drawings.

A fibre washer I4 is supplied to the shank-8 to hold. the two links spaced apart, and to provide friction in association with the steel spring washer H which provides the spring pressure to hold the toggle joint in anyadjusted position. I .1 'Als'o,.the stud 5 is rigid with the ear l5'of the bracket plate l6 secured to the window sash, as hereinbefore mentioned; A rigid stud l1 passes through the-aperture formed in the ear-like portion 3 of link 1- and is rigidly fixed therein. This stud H. is shaped-with on inner head I 8, as shown in Figure 8 of the drawings. This head is adapted to. pass inwardly through an opening IS in an outer wall of the bracket plate (see Figure 8) and is fastened to the side of the window frame. A wire spring device 2| is inserted downwardly through the top and bottom wall of the'bracket plate 20. The-spring device is shaped substantially like a hairpin with the two legs thereof engaging behind the outer end of the head l8, previously described, so that, whenthe stud is pressed inwardlythrough the opening l9, the two side legs of the spring device move resiliently away fromeach other, and then snap under the shoulder of the spring device 2| to grip said stud and hold it against being pulled out. This resilient grip, however, exerts only a moderate force, '50

that the stud can be pulled out with sufiicient force, as the spring device-2| will yield enough for purpose. Thus the detachable fastener is of construction, which reduces like a snap fastener that requires no adjustment or no member to be unfastened in order to retain or release the stud from its operative position.

.The links I and 2 have at eachend a corner or nose portion 22, which engages the end of the flange 13 or 2. lug on the other link when the two links are in alinement, whereby to hold the sash in open position, as shown more clearly in Figure.

9 of the drawings. Thus it will be seen that when thetoggle joint is in' position to hold the sash operator in open position, the entire sash operator is perfectly'straight, or with the two links I and 2 in alinement. It will be seen that the positioning of the toggle joint does not come to center when the operator ismoved in position to hold the sash in its open position. v

The handle portions! of the pivotal pin 8 formingthe pivot of a toggle joint are advantageous because it is not necessary for the present opening or closing of the sash to touch either the link I or 2 or any portion thereof, and therefore the fingers cannot be pinched. In correct operation, by grasping the handle 1, the links I and 2 can be opened or collapsed to closed position, to correspondingly swing the window sash.

In addition, it is not necessary to manually ad just with the fingers or a tool any retaining device on the p1ate'20 inorder to retain or release the stud ll in or from its operative position. Furthermore, in extreme open position, the locking portions 22 abut or contact the inner flanges of the links, and thus lock these links in straightline position, which corresponds to the extreme open position of the window sash. Obviously, instead of using the entire flanges l3, a couple of short lugs, in lieu thereof, will suffice both for maintaining the links in upwardly closed position, and also in forming stops for the locking corners 22. The shank 8 of the handle is preferably flattened on one side, as shown in Figure 6, and the hole of the spring washer II is likewise flanged on one side, whereby to prevent the washer from turning relatively to the shank,

This spring washer II and the fibre washer M are combined in association with the rounded ,ends3 and 4 of the links I and 2 to provide sufficient friction to maintain the toggle joint in any adjusted position. Thus it will be seen that by forming links I and'Z'identically, and particularly of sheet metal, and by' forming the associated elements in the manner described,- the entire structure is one of utmost simplicity the'cost of pro.- duction and the selling price to the consumer, while at the same time it insures a brace or operator that will efiiciently Work and not get out of order. r

In the slightly modified form show'n in Figures 12 to 16, inclusive, I have constructed the handle l with an angular shoulder 24 which is adapted to engage in a correspondingly shapedaperture 26 in a flat sheet metal washer 28, which is, in turn, prov ded with a recess or aperture 30 of predetermined angular design, which engages in and connects with a lateral lug 32 of similar cross section formed on the end 34 of link 2. This lug 32 laterally offsets fromthe flange l3, of a link 2'. I

I also provide an extra washer l4 engaged between the other washer in the assembly, so.

l4 engage between the, v

that the two washers metal washer 28 and the rounded ears on the end of the links ["and 2', the spring I] in con- I2 threaded on the shank.

junction with the nut 8 of the handle serving to provide sufficient 2. The combination of a pair of links, the adjacent ends of each of said links having sub-.

friction and yielding pressure to hold a toggle joint in any adjusted position. It will be noted that the handle 1 in this construction is formed rigidly and integrally with the washer 28, which, in turn, is formed integrally and connected with the link 2 of the toggle joint assembly, so that a push down or pull up on the handle I will more quickly and more effectively serve to shift the link members I and 2 relatively to each other, whereby to open or close the window sash relatively to the window frame.

Obviously the invention is not limited to the specific structural arrangement disclosed herein, but is capable of other modifications and changes without departing from the spirit and scope of the present invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent-is:

1. In a sash operator, a pair of links connected by a pivot to form a toggle joint at practically the middle of the brace or operator, each link having a nose or corner at said toggle joint in the vertical plane of the flat link itself, and a laterally bent portion of each link to engage said nose or corner of the other link, holding the two links in straight alinement when the sash is in open position.

stantially rounded portions formed with reg istering apertures, each of said rounded portions being provided with a wedge-shaped looking nose, a pivot pin having a shank portion threaded and having an adjoining shoulder and a laterally projecting handle portion, a rigid washer having an angular recess passing throughsaid shank and overlying the angular portion of said shank, there being centrally apertured friction washers, a spring metal, centrally apertured 'washer through which said shank is adapted to pass in assembling said rigid washer, said frictionwashers, and said resilient washer together, fastener means adapted threadedly to engage the shank to hold said -members together, each of said links adjacent the nose portion having an abutment against which the next portion on the other link is adapted to lock when the links are open inexten'ded position, and said rigid washer having an additional slot adapted to receive a projection on one of said links whereby rigidly to connect said handle and shank portion with said last mentioned link.

' EUGENE R. TARVI N. 

